I answer all those questions with yes. It's really just a matter of how you carry it. For instance, not only do I keep my Gun on me, but I also keep these on me as well.
Dramamine, Cold Pack, Roller Gauge 2&4in, Band aids, scissors, tylonol, psuedofedrine, Prep pads, Sunscreen, triangular bandage, Butterfly closures, 4x4 bandages, one-time neosporine, Potable water, lip balm, Blod-clot, Large bandage, .45 caliber handgun, 3 magazines, 39 rounds hyrda shock, mace, Leather man, Utility knife, tweezers, laser pointer, zip ties, duct tape, scanner, Cellphone, Pencil and notepad, personal phone directory, business cards, Pocket constitution state and Federal, Video Camera, Phone numbers for legal advice, Lunch bag, water bottle, sleepover tooth brushes mouthwash, floss, cologne, hotel soap bar, ziploc bags, trash bag, Interesting book, Notebook, Pen and pencil, Ref Book, Computer, charger with 120/12v for laptop, cellphones and scanner, Flashdrive, Fire starter, compass, lighter, condoms.
on computer
encryption, DnD books, textbooks, maps, dictionary, thesaurus, MLA style guide, Field Manual, Skeptoid, History books, Biographical encyclopedia, CIA world fact book, Cognitive tools, Chat software, IRC, Wardriving, Bluetooth, Bittorent, python, Encrypted passwords for every website I visit on flashdrive
So it's all just a matter of having the right gear for the right job.